Elven Mists game play is super fun and relatively simple. You want to solve the puzzle as quickly as you can, or before the red timer at the bottom of the screen runs out. Use your mouse to place the pieces of green tiles on the board. You'll recognize that all the pieces are shaped like Tetris pieces! Use your mouse wheel to change the rotation of the pieces so they can interlock easier. Place the tiles over the elven spirits and create lines of four or more to release the spirits. When you release all the spirits on the board, you complete the level and move on.